Acer AM501 Service Manual page 20

15-inch crt monitor
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4.10.3 Picture Size Variation
The change in display size shall be less than 3mm in width or 2mm in height at full white
pattern.(250x188mm
Brightness change from 5FL to 25FL
Temperature change in 25°C±10°C
4.10.4 Display Centering
Figure 9. Describes the pattern for this test. Basically a single pixel white line around the perimeter of the
data area composes it, with marks for the horizontal ad vertical axes. The background is black.
The maximum variation of the display centering shall be such that the following relationship shall be
met:
The external control ranges of display position for all modes listed in part 2.3.1 shall be as follows:
4.10.5 Tilt
The maximum variation of the display rotation (tilt) shall be such that the following relationship shall be
met:
2
)
a | L - R | ≦ 2.5mm | U - D | ≦2mm
Figure 9: Display Centering
Horizontal position:
Vertical position:
θ≦0.5 degree
Figure 10: Tilt
total control range≧ 40mm
total control range≧ 25mm
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